CN87214832U - Gaseous fuels stove timer - Google Patents

Abstract

The utility model relates to an energy-saving type gaseous fuels stove timer, which comprises a mechanical timing mechanism and a cylindrical one-way ventilating valve. The timer can efficiently control accidents caused by various factors of the wrong processes of using various gaseous fuels stoves, etc. After the timer is installed on various gaseous fuels stoves, the user can time to communicate the gas from 5 minutes to 2 hours at will. The fire of the stove can be extinguished automatically to prevent the accident happening. Consequently the purposes of safety and energy-saving of fuels are achieved. The gaseous fuels stove timer comprises the mechanical timing mechanism, the cylindrical one way ventilating valve and a plastic crust.

Description

Gaseous fuels stove timer

The utility model belongs to gas furnace timer class.

Along with the development and use of the development and national economy and the new energy, vast city, partly the rural area the burning energy progressively from low heating rate, high pollution, the coal of unclean health, firewood change thermal efficiency height into, pollute less, the gas combustion energy of clean and convenient.As natural gas, coal gas, biogas etc.Yet the appearance of new things has also brought new contradiction.Because the method for people when using gas stove is improper, or careless, so that brought some harm for people's life security.Such as, when on gas stove, boiling water or boiling soup, because user's carelessness,, burning fire is extinguished, and caused a large amount of toxic gases excessive to making boiled boiling water, soup excessive, cause the user to poison even explode.Another kind of phenomenon is exactly that people have forgotten the time when cooking food, and food burns out, cooker damages, wave has given up the energy and make, and causes damage.Similar phenomenon has all reflected the problem that people exist when using gas stove.In order to overcome the problem of above existence, the gas stove timer arises at the historic moment, some present combustion gas timers of many sights.The not outer conventional valves structures such as needle valve, ball valve, cone valve that adopt, the characteristics of this class valve are the motion process complexity, general mechanical timing is difficult to realize the motion of spool.In addition, machining complexity, uneconomical, thus product cost is improved, be not easy to be accepted by users.At present, the natural gas timer cost that has is up to 50 yuan more than.In order to overcome the problem that existing gas stove timer exists, the invention is intended to develop a kind of brand-new valve mechanism, make the gas stove timer construction simple, be easy to machining, reduced cost, and safe in utilization, save the purpose that national energy reduces the spending of people's economy again.

Accompanying drawing one is the A-A cutaway view (aeration status) of gas stove timer construction.

Accompanying drawing two is the A-A cutaway view of gas stove timer construction (state of dying).

Accompanying drawing three is the left view of gas stove timer.

(1) is breather pipe among the figure; (2) be valve body, (3) are spool; (4) be spring housing; (5) be compression spring; (6) be valve core cap; (7) be rubber washer; (8) be ripple type latex packing ring; (9) be metal washer; (10) (11) are metal washer; (12) be nut; (13) regulate cap for spool; (14) be clamping sleeve; (15) be mechanical timing; (16) be the timing mechanism driving lever; (17) be the timing mechanism dial; (18) be the timing mechanism knob; (19) be gas stove timer shell; (20) be gas stove ventilation rubber tube.

The utility model structure is shown in figure one, the utility model has made full use of the prior mechanical timing mechanism from structure, (15) dial (17) drives the reciprocating mechanism of driving lever (16), design the unidirectional reciprocal gas valve of column-style, thereby reached the purpose that regularly ventilation is died automatically.

Operation principle of the present utility model is as follows, stirs timing mechanism knob (18) with hand to counter-clockwise direction, also the head of timing mechanism driving lever (16) is ejected in the groove of timing mechanism dial (17) thereby drive timing mechanism dial (17) rotation.After timing mechanism driving lever (16) is ejected, promptly promote spool and regulate cap (13) spool (3) binding whole upwards (preceding) motion, spring (5) shrinks under the promotion of spool (3), when the passage in air channel on the spool (3) and the valve body (2) coincide, the gas that blocks by the through hole on the interior right side of valve body (2), enters gas stove ventilation rubber tube (20) by breather pipe (1) by the spool groove, shown in figure one, enter the gas stove burning at last.At this moment, spool (3) is regulated cap (13) timing mechanism driving lever (16) being pressed on the timing mechanism dial (17) tightly by spool under the effect of compression spring (5).Timing mechanism dial (17) is under the clockwork spring and gear promotion of timing mechanism (15) simultaneously, be rotated in a clockwise direction, when the trough rim on the dial (17) rotates to the chieftain bottom of driving lever (16), spring (5) is regulated the pressure of cap (13) transmission by spool (3) spool because driving lever (16) is under pressure, the head of driving lever (16) is got back in the groove of dial (17), as shown in Figure 2.This moment, spool (3) spool was regulated cap (13) also along with moving downward, thereby the passage that the air channel on the spool (3) is left in the valve body (2) moves downward, the garden cylinder of last spool (3) has been got back to the passage position in the valve body (2) again, reaches to stop up the purpose that gas passes through.Because the passage diameter in the valve body (2) has only spool (3) garden column diameter half, so that gas is blocked in a side of valve body (2) fully.Wherein, rubber washer (7) shrinks down in the compressing that screws of spring housing (4), reaches to prevent that a small amount of gas that gas spills from the cooperation place of valve body (2) and spool (3) from leaking outside again.The borehole jack in the centre of ripple type latex packing ring (8) is at the screw thread place of spool (3), packing ring (10) (11) is installed in the two sides of ripple type latex packing ring, and ripple type latex packing ring (8) is fixed on the bottom of thread of spool (3) with nut (12).The limit of while ripple type latex packing ring (8), be pressed under the effect of clamping sleeve (14) metal washer (9) on the valve body (2), formed one totally-enclosed, thereby prevented that a small amount of gas that gas spills from the cooperation place of valve body (2) and spool (3) from leaking outside again.The main effect of ripple type latex packing ring (8) is, 1, prevent that gas from leaking outside, 2, be exactly that general faced washer is easy to fatigue, damage when spool (3) when moving up and down.And the employing ripple type just can make life-span of packing ring, and reliability improves a lot.Resistance when adopting ripple type latex packing ring (8) can reduce spool in addition to move up and down makes whole timing mechanism accurate, closes gas reliably.The effect of valve core cap (6) is that anti-upper spring (5) skids.

Using method of the present utility model is as follows, shown in figure two.At first the gas stove timer is fixed on the wall by gas stove.Again the rubber breather pipe of gas stove is cut off, two of cutting off is enclosed within respectively on two breather pipes (1) of gas stove timer, so just can use.Stir knob (20) counter clockwise with hand, make the directrix of knob (20) aim at graduated time ring on the cap, timing range 5 minutes～2 hours.This moment, gas stove was in aeration status.Shown in figure one.If the user uses the time of cooking stove to surpass 2 hours, can stir knob (20) in the direction of the clock, up to the chieftain of driving lever (16) bottom is stuck on the clamp of dial (17), this moment, the gas stove timer was in normal open state.Because dial (17) can only circle round automatically to clockwise direction, in a single day so block, the gas stove timer then is in normal open state.

The utility model gas stove timer construction is simple, and volume is little, safe, reliable, energy savings, and the structure that need not change existing gas stove just can be used.The valve body (2) of this novel gas cooking stove timer, spool (3), passage (1) are used brass, this class corrosion-resistant material of stainless steel is made, the mechanical type timing mechanism adopts the timing mechanism of common alternating current timer, and the utility model gas stove timer adopts is the timing mechanism of the alternating current timer produced of commercially available Tianshan Mountains, Shanghai sky Watch Factory.The utility model gas stove timer is trial-produceed successfully.

Claims (2)

1, a kind of novel gas cooking stove timer, by the unidirectional breather valve of column-style, mechanical type timing mechanism and plastic casing constitute.It is characterized in that: valve adopts column-style spool [3], and valve body [2] adopts the orthoscopic passage.Ripple type latex packing ring [8], rubber washer [7] are adopted in the position that prevents to leak gas.Spring housing [4], clamping sleeve [14], metal washer [9], [10], [11], valve core cap [6], spool [3], decorative cover [10], ripple type latex packing ring [8], packing ring [11], nut [12], spool is regulated cap [13], forms a whole from top to bottom according to order.

2, a kind of gas stove timer according to claim 1 is characterized in that;

(1) has an air channel on the spool (3);

(2) compression spring (5) is as the automatically reset power of spool (3), and the elastic force of compression spring (5) is 400～500 grams.

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